Fraud preventive device



April 25, 1933- H. J/HALSTED El AL 35 FRAUD PREVENT IVE DEVICE Original Filed July 24, 1930 Patented Apr. 25, 1933 UNITED STATES PATEN. OFFICE HOBART J. HALSTED AND NORMAN RoRERr BRIGGS, or BUFFALO, NEW YORK FRAUD PREVENTIVE DEVICE Original application filed July 24, 1930, Serial No. 470,517. Divided and thisappli'cation filed Novemher 2, 1931.

This invention relates to a fraud preventive device designed primarily for use in connection with vending machines. It is a division of an application filed by us on July 24;,

1930, Serial Number 47 0,517

One of the objects of the invention is to provide simple and efficient mechanism for eliminating slugs and coins of value other than the one required, by returning them to the customer or by discarding them without operating the dispensing mechanism.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawing the preferred form of the invention has been shown.

In said drawing:

Figure 1 is a longitudinal section through the cooperating coin guide of the device.

Figure 2 is a section on line 2-2, Figure 1.

Figure 3 is a section on line 3-3, Figure 1.

Referring to the figures by characters of reference 5 designates an inclined guide tube leading from a coin slot (not shown) provided in a suitable casing C. This tube is offset downwardly at 6 so as to retard the movement of an inserted coin or check. Adjacent to the outlet the tube is formed with a lining 7 of felt or other soft material which will tend to further retardthe movement of deposited thereon. The scales consist of a the coin or check toward the point of deliv- Serial No. 572,649.

bas 11 havingalining studs 12 which prov I j ect into eyes 13 at thelower ends of the yoke 10. These studs are formed with knife edges indicated at 14 which bear downwardly on the eyes 18. I

Parallel guide strips 15' are arranged upon the strips 11 and cooperate therewith to form a channel adapted to receive a coin delivered from the tube5. The bottom of this channel is formed with a shallow recess 16 directly under the outlet of the tube 5 which will serve momentarily to retain a .coin on the scales. A Weight 1-7 is adjustable longitudinally of the strip 11 and is adapted to be held in place by neans of a set screw 18.

It is intended to have the scales so proportioned that under normal conditions the weighted arm or end portion of the strip 11 will be one-half gram lighter than the .weight of a coin intended to'actuate the scales and allow the apparatus to operate. For example, if it is intended to use an American silver quarter in this apparatus, the weighted end portion of a strip 11 will be overbalanced by the quarter even though it should be worn down, until nearly one-half gram underweight. The weight 17 can be adjusted to adapt the apparatus to coins of other denominations.

.When the scales are in normal position 1 they are inclined downwardly from the outlet end of the tube 5 towards an outlet slot 19 which communicates with a trough or pocket 20 outside ofthe casing 1. Thus any coins underweight or any checks which are not of the proper Weight will, when deposited in the'channe-l formed between the strips 15, roll downwardly to and through slot 19.

As shown in the drawing a short stationary trough 21 can be interposed between the scales and the slot for receiving a coin or checkfrom the scales and delivering it through the slot.

W hen a coin of proper value is deposited on the scales from the tube 5, the scales will be tilted to elevate the weighted end. This tilting action will be justsufiicient to allow the deposited coin to roll from the scales into a channel 22.

A return channel 28 has its inlet located directly below the inlet end of the channel 22 and from this inlet it is extended back to an outlet. The inlets of the two channels 22 and 28 are supported close to the adjacent end of the scales. Consequently should a coin or check of more than the required weight be deposited on the scales, the scales would be tilted abruptly and arrive against a stop 30 before the coin or check would have a chance to enter channel 22. Instead, said coin or check would roll into the channel 28 and be delivered back to they customer.

Scales are normally inclined downwardly towardthe channel 21 and slot 19. When a coin of proper value is inserted it will gravitate within the tube or channel 5, being retarded in its movement by the offset portion 6 and by the soft lining 7. Ultimately the coin will be deposited gently on the recessed portion 16 of thescales, and, as it is of proper weight, the scales will be tilted and allow the coin to roll into the channel 22.

Should a slug formedof iron or steel be directed into the tube '5, it would be stopped by one of the magnets 8. If a slug should get past these magnets and be underweight, it would be delivered back through the slot 19. I

Should the coin or check be overweight, the weight thereof will cause the scales to tilt downwardly so as to allow the check to roll into the return channel.

What is claimed is:

The combination with a casing, of an inclined coin guide tube having an outlet end extending downwardly at an obtuse angle thereto, an inclined stationary delivery trough opening through a wall of the casing, scales tiltablymounted and alining normally at one end with said trough, the other end being extended under the outlet end of the coin tube, parallel upstanding strips on the scales for guiding a rollingcoin to the trough from the outlet of the coin tube, a weight on the scalesand adjustable along the bottom thereof, a coin receiving channel, a coin returning channel, said channels having superposed coin receiving ends normally positioned below the adjacent coin receiving end of the scales and cooperating to define an arc close to and parallel with the path of movement of said end of the scales, said scales when subjected to the correct weight of a coin being-tiltable to deliver said coin into the receiving channel and, when subjected to overweight, being adapted to deliver the coin into the return channel, and a stop on said channel for the scales.

, In testimony that we claim the foregoing as our own, we have hereto aflixed our signatures.

HOBART J. HALSTED. NORMAN ROBERT BRIGGS. 

